Are convenience fees legal?

Related questions

1. Should I wait to book my flight?
2. Can I change my return flight date?
3. Do flights ever get cheaper last minute?
4. When's the best time to book a flight?
5. What happens if I don't show up for a flight?
6. Can non refundable tickets be rescheduled?
7. How much does it cost to reschedule a flight?
8. What is fly now pay later?
9. Can I charge a convenience fee?
10. What is the best time of day to book a flight?

Tags

1. #govern
2. #however
3. #payment
4. #surcharges
5. #specifically
6. #states
7. #convenience
8. #charge
9. #their
10. #online
11. #because
12. #customers
13. #subset
14. #customer
15. #credit
16. #business
17. #permitted
18. #cannot